Non-aqueous electrolyte secondary cell
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United States of America Patent
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Dec 5, 2000
Grant Date -
N/A
app pub date -
Jun 7, 1999
filing date -
Oct 7, 1997
priority date (Note) -
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Abstract
A collector terminal for a non-aqueous electrolyte secondary battery, especially a large-size battery, is provided which is free from breakage when its exterior terminal is fastened with a nut with an excessive torque, superior in electrical conductivity, and high in reliability. The section of the collector terminal forming an exterior terminal and the section where lead plates taken out from the electrode group consist of different types of metals, which are integrated by solid-phase bonding or by vacuum brazing. Among the solid-phase bonding methods, diffusion bonding, explosion pressure welding, and friction bonding are effective.
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